31301053503103 has 4 divisors (see below), whose sum is σ = 33142291944480. Its totient is φ = 29459815061728.

The previous prime is 31301053503061. The next prime is 31301053503113. The reversal of 31301053503103 is 30130535010313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31301053503103 - 2¹³ = 31301053494911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31301053503113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 920619220663 + ... + 920619220696.

It is an arithmetic number, because the mean of its divisors is an integer number (8285572986120).

Almost surely, 2^{31301053503103} is an apocalyptic number.

31301053503103 is a deficient number, since it is larger than the sum of its proper divisors (1841238441377).

31301053503103 is a wasteful number, since it uses less digits than its factorization.

31301053503103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841238441376.

The product of its (nonzero) digits is 6075, while the sum is 28.

Adding to 31301053503103 its reverse (30130535010313), we get a palindrome (61431588513416).

The spelling of 31301053503103 in words is "thirty-one trillion, three hundred one billion, fifty-three million, five hundred three thousand, one hundred three".